BS 7895:1997 (R12):2005 Edition
$86.31
Specification for bayonet lampholders with enhanced safety
| Published By | Publication Date | Number of Pages |
| BSI | 2005 | 14 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British Standard |
| 3 | Contents |
| 5 | 1 General 1.1 Scope 1.2 References 2 Definitions 3 General requirements |
| 6 | 4 General conditions for tests 5 Standard ratings 6 Classification 7 Marking 8 Dimensions 9 Protection against electric shock 9.1 Lampholders shall be so designed that, when fully assembled, live parts of the lampholder are not accessible when the lampholder is fitted with the testing device shown in BS EN 61184:1997, Figure 7. |
| 7 | 10 Terminals 11 Provision for earthing 12 Construction |
| 8 | Values for cord grip tests |
| 9 | 13 Switched lampholders 14 Moisture resistance, insulation resistance and electrical strength 15 Mechanical strength 16 Screws, current-carrying parts and connections 17 Creepage distances and clearances 18 General resistance to heat 19 Resistance to heat, fire and tracking 20 Resistance to excessive residual stresses (season cracking) and to rusting 20.1 Contacts and other parts of rolled sheets of copper or copper alloy whose failure might cause the lampholder to become unsafe shall not be damaged due to excessive residual stresses. 21 Endurance 21.1 Lampholders with enhanced safety shall be capable of making and breaking a load comprising a general lighting service (GLS) tungsten filament lamp operating at rated voltage. Compliance shall be checked by the following tests. 21.2 Following completion of the relevant tests specified in 18.1 and after having cooled to room temperature, the lampholder shall be tested with a.c. (cosΠ= 1) at rated voltage using a 150 W lamp. The lamp shall be inserted and removed 250 times at a |
| 10 | Test cap B15d (see 21.1) |
| 11 | Test cap B22d (see 21.1) |
| 12 | (normative) (normative) (normative) (normative) (normative) (normative) |
